Fourie, AB & Gawu, SKY 2010, 'The validity of laboratory flume data for predicting beach slopes of thickened tailings deposits', in R Jewell & AB Fourie (eds), Paste 2010: Proceedings of the Thirteenth International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 241-253, https://doi.org/10.36487/ACG_rep/1063_21_Fourie
One method for the placement of thickened tailings is the central discharge technique. The beach slopes
achieved with this method have generally been in the order of 2 to 3%. With such small beach slopes, it is
important to be able to predict the slope angles accurately. This is often done using laboratory flume tests.
However, these predictions have tended to overestimate slope angles. This paper presents a model that takes
account of the wall friction in flume tests and illustrates the folly of using flume tests indiscriminately. The
model does not account for issues such as deposition rate or initial velocity, but serves to quantify the
potential errors of using flume data for direct extrapolation to field applications.
Blight, G.E. (1987) The concept of the master profile for tailings dam beaches, in Proceedings International Conference
on Mining and Industrial Waste Management, Johannesburg, pp. 95–100.
Blight, G.E. and Bentel, G.M. (1983) The behaviour of mine tailings during hydraulic deposition, Journal of the South
African Institute of Mining and Metallurgy, 83 (4), pp. 73–86.
Blight, G.E. and Fourie, A.B. (2005) Catastrophe revisited – disastrous flow failures of mine and municipal solid waste,
Geotechnical and Geological Engineering, 23(3), pp. 219–248.
Blight, G.E., Robinson, M.J. and Diering, J.A.C. (1981) The flow of slurry from a breached tailings dam, Journal of the
South African Institution of Mining and Metallurgy, 81 (1), pp. 1–8.
Blight, G.E., Thomson, R.R. and Vorster, K. (1985) Profiles of hydraulic-fill tailings beaches, and seepage through
hydraulically sorted tailings, Journal of the South African Institution of Mining and Metallurgy, 85(5),
Chanson, H., Coussot, P., Jarny, S. and Tocquer, L. (2004) A study of dam break wave of thixotropic fluid: bentonite
surges down an inclined plane, Research report, Department of Civil Engineering, University of Queensland.
Gawu, S.K.Y. (2004) Characterizing thickened tailings for safe environmental surface placement, PhD Thesis,
University of the Witwatersrand, Johannesburg, South Africa.
Gawu, S.K.Y. and Fourie, A.B. (2004) Assesment of the modified slump test as a measure of the yield stress of high-
density thickened tailings, Canadian Geotechnical Journal, 41(1), pp. 39–47.
Küpper, A.A.G., Morgenstern, N.R. and Sego, D.C. (1992) Comparison between various flume tests used for hydraulic-
fill studies, Canadian Geotechnical Journal, 29, pp. 418–425.
Liddell, P.V. and Boger, D.V. (1996) Yield stress measurement with the vane, Journal of Non-Newtonian Fluid
Mechanics, 63, pp. 235–261.
Martin, T.E., Davies, M.P., Rice, S., Higgs, T. and Lighthall, P.C. (2002) Stewardship of tailings dams, Mining,
Minerals and Sustainable Development Report No. 20, International Institute for Environment and Development,
Melent’ev, V.A., Kolpashnikov, N.P. and Volnin, B.A. (1973) Hydraulic fill structures, Energy, Moscow (English
translation of original Russian).
Palmer, B. and Krizek, R.J. (1987) Thickened slurry disposal for process tailings, in Proceedings Specialty conference
Geotechnical Practice for Waste Disposal, Michigan, American Society of Civil Engineers,
Robinsky, E.I. (1979) Tailing disposal by the thickened discharge method for improved economy and environmental
control in tailings disposal today, in Proceedings 2nd International Tailing Symposium, Denver, Colorado, May
1978, Vol. 2, Miller Freeman Publications, Inc., San Francisco, California, USA, pp. 75–92.
Wates, J.A. (1987) The effect of relative densities on beaching angles and segregation on gold and uranium tailings
dams, in Proceedings International conference on Mining and Industrial Waste Management, Johannesburg,
South Africa, pp. 89–93.
Williams, M.P.A., Seddon, K.D. and Fitton, T.G. (2008) Surface Disposal of Paste and Thickened Tailings – A Brief
History and Current Confronting Issues, in Proceedings Eleventh International Seminar on Paste and Thickened
Tailings, Australian Centre for Geomechanics, Perth, Australia, pp. 143–164.
The validity of laboratory flume data for predicting beach slopes of thickened tailings deposits A.B. Fourie and S.K.Y. Gawu
254 Paste 2010, Toronto, Canada